Means of fastening electric conductors to insulators.



J. 8., THOMPSON. MEANS or FASTENING ELEG CONDUCT o INSULATORS. PPLIOTION 1) 14113.22, 1,022,161..

Patented Apr. 2, 1912 J; W 'll "1 5 ing JOSEPH SEXT MEANS OF FASTENING ELECTRIC CONDUDTORS '10 INSULATORS,

ON THOMPSON, OF MILL VALLEY CALIFOR NIA.

Specification of Letters Patent. 7 Patented Apr. 2, 1912.

Application filed March 22, 1911. Serial'No. 616,116.

To all whom it may concern:

Be it known that I, Josnrn SnxToN THOMPSON, a citizen of the United States, residing in Mill Valley, in the county of Marin and State of California, have invented a new and useful Meansof Fastening Electric Conductors to Insulators, of which the following is a specification.

My invention relates clamping devices suited for use in support-- switch contacts and parts, fuse fittings, bus-bar clamps or holders, and other electrical conductors and devices, on insulators such as the ordinary porcelain line insulators, and the objects of my improvement are, first, to secure a firm and unyielding support with a minimum of parts, and second, to

unobstructed use of the groove around the top of tliejnsulator for tying or wrapping a line wire or connecting wire, if desired. I attainthis object by the device illustrated permit the free and Figure l is a top perspective view showing the general assembly of the parts, and

Fig. 2 is a sectional view showing all the parts in their proper relation.

Similar letters refer to similar throughout the several views.

' The mechanism or group forming my device consists of the parts A, B, and B",.and the bolt C, the pieces B and B being exactly alike.

Part A is designed to set on the flat top parts of the insulator D, and has downwardly set, projecting ears E, which engage in the the head of the insulator, so the extension roove across formed that they also engage five cents each, by addressing the Washington, D. 0.

Copies of this patent may be obtained for to improvements in in the accompanying- F of the castings B and B, and also so formed, with a groove on their under side,

to hold it and the parts B and B" inline. Such other shaping of the part A asmay best suit it to the various needs of switch, or other, work can be variable and forms no part of my invention.

sion engages the ear E of part A, and so that it admits of the placing of the bolt C as shown, and so that its two ears also shaped with a groove extending across it from the outer ends of the ears G, in such a manner as to conform to the groove of the insulator so that it forms no obstruction to the wrapping or tying of wires around the insulator.

In my applying of this invention 1 do not limit myself to any particular size or shape of insulator, or any-particular material of which to make the parts.

What I claim, is

electric conductors or parts to insulators, comprising a central portionv to which is fastened the conductor or part, and two clamping pieces to embrace the central portion and the insulator, the-whole held in position by one bolt only.

In witness whereof I hand this 25th day of January 1911.

JOSEPH SEXTON THOMPSON.

Witnesses:

L. P. VAN ATTA,

EDWARD F. SIxTUs.

Commissioner of Patents,

that they set astride of the bolt O, helping Part B is so shaped that'its upper exten- Gr fit suitably in the groove of the insulator D. Part B is' have hereunto ,set my.

A device for supporting and fastening 

